[Linux]CentOS安装或升级Python到2.7.5

Jun 17, 2013#centos #linux #python69

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This is a guide on how to install or upgrade Python to version 2.7.5 on CentOS. The default installation of CentOS 6.4 comes with Python version 2.6.6, but many programs require version 2.7 to run. The guide provides step-by-step instructions on how to install wget, download and compile Python 2.7.5, create a link to the new version while keeping the old version, and modify yum's Python configuration to avoid any issues.

CentOS6.4 下的默认安装的 Python 版本为 2.6.6，很多程序需要在 2.7 下才能运行。

1. 安装 wget,CentOS 最小安装模式下未安装。

yum install wget

2. 下载和编译 python 2.7，当前最新版本为 2.7.5

wget http://www.python.org/ftp/python/2.7.5/Python-2.7.5.tar.bz2
tar jxvf Python-2.7.5.tar.bz2
cd Python-2.7.5
./configure
make
make install

3. 做好连接，保留旧版本 python

mv /usr/bin/python /usr/bin/python2.6.6
ln -s /usr/local/bin/python2.7 /usr/bin/python

4. 修改 yum 的 python 配置，以免无法使用

vi /usr/bin/yum

修改第一行的
#!/usr/bin/python
为
#!/usr/bin/python2.6.6